CVE-2026-98432: Ubuntu and Red Hat finally patch a critical Linux kernel flaw

Not listed so far in CISA’s catalog of actively exploited vulnerabilities.

Our analyses

Ubuntu and Red Hat finally patch a critical Linux kernel flaw

A Linux kernel flaw rated 9.8 out of 10 has affected servers since version 4.4. Red Hat and Ubuntu have released patched kernels: which versions to install, and the firewall rule that only partly protects you until you reboot.

Nov 1, 20264 min read

Cybersecurity

Hackers are using AI keys developers entrusted to hosting provider Northflank

On October 30, the UK hosting provider told customers to treat all their secrets as stolen. Here is what to revoke, and why this is not an isolated case: eight other platforms were hit in October.

Nov 1, 20264 min read

AI & security

Anthropic says one of its AIs designed attacks on Chrome, Safari, Windows and Linux

On October 27, Anthropic's security team published five attack chains produced by an internal model. The flaws are patched: here are the versions to install, and what this announcement does not yet prove.

Oct 29, 20263 min read

Alerts and vulnerabilities from CERT Santé, the French healthcare CERT

CVSS 9.8Nov 3

Linux - CVE-2026-98432

Patch availableWorkaround available

What to do

Check whether your estate includes the affected product, including internet-facing devices.
Apply the vendor’s patch or mitigations (references below).
Watch for exploitation: this entry is updated if the vulnerability enters the exploited catalog or is the subject of a CERT-FR alert.

References

NVD entry (NIST)